fix: DB 마이그레이션 중 누락된 필드 추가

[JanooGwan]

🔍 개요

• close #이슈번호

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🚀 주요 변경 내용

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💬 참고 사항

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✅ Checklist (완료 조건)

• 코드 스타일 가이드 준수
• 테스트 코드 포함됨
• Reviewers / Assignees / Labels 지정 완료
• 보안 및 민감 정보 검증 (API 키, 환경 변수, 개인정보 등)

Summary by CodeRabbit

• New Features
  • Added fee requirement tracking capability for clubs

[coderabbitai]

Caution

Review failed

The head commit changed during the review from a439d0d to e6467a8.

📝 Walkthrough

Walkthrough

Database migration adding a new column is_fee_required to the club table. The column uses TINYINT(1) type with a default value of NULL.

Changes

Cohort / File(s)	Summary
Database Migration src/main/resources/db/migration/V30__add_is_fee_required_to_club.sql	Added new column is_fee_required (TINYINT(1), DEFAULT NULL) to the club table.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 A column hops into the club,
Fee required? A nullable nub,
Migration V30 does its deed,
Schema grows at rabbity speed! ✨

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix/fee-db-migration

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